J. Vicente Riera

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OBJECTIVE Butyrate enemas may be effective in the treatment of active distal ulcerative colitis. Because colonic fermentation of Plantago ovata seeds (dietary fiber) yields butyrate, the aim of this study was to assess the efficacy and safety of Plantago ovata seeds as compared with mesalamine in maintaining remission in ulcerative colitis. METHODS An(More)
We compared absolute values of regional tissue hemoglobin saturation (StO(2)), reproducibility, and dynamic range of four different instruments on the forearm of adults. The sensors were repositioned 10 times on each subject. Dynamic range was estimated by exercise with subsequent arterial occlusion. Mean StO(2) was 70.1% ± 6.7 with INVOS 5100, 69.4% ± 5.0(More)
OBJECTIVE To determine if it is possible to stabilise the cerebral oxygenation of extremely preterm infants monitored by cerebral near infrared spectroscopy (NIRS) oximetry. DESIGN Phase II randomised, single blinded, parallel clinical trial. SETTING Eight tertiary neonatal intensive care units in eight European countries. PARTICIPANTS 166 extremely(More)
BACKGROUND Inodilators are routinely used in cardiovascular surgery with cardiopulmonary bypass (CPB). Information regarding safety and tolerability of the novel molecule, levosimendan (LEVO), in newborns is anecdotal; no pharmacokinetic data in this population are available. METHODS This was a phase I, randomized, and blinded study. Neonates undergoing(More)
OBJECTIVE To evaluate preoperative and operative methods of detecting liver metastases in patients undergoing primary resection for colorectal carcinoma. DESIGN Prospective, open study. SETTING Teaching hospital, Germany. SUBJECTS 51 Patients with confirmed primary colorectal carcinoma. INTERVENTIONS Computed tomography during arterial portography(More)
OBJECTIVE We study liver damage in forty-two patients with rheumatoid arthritis (RA) using light (LM) and electron microscopy (EM) and assess histological changes after four years of treatment with methotrexate (MTX). PATIENTS AND METHODS liver biopsies (LB) were taken before and after four years of treatment. Patients received weekly doses of between(More)
— This paper proposes to study the lattice properties of two closed binary operations in the set of discrete fuzzy numbers. Using these operations to represent the meet and the join, we prove that the set of discrete fuzzy numbers whose support is a set of consecutive natural numbers is a distributive lattice. Finally, we demonstrate that the subsets of(More)